133164142 has 4 divisors (see below), whose sum is σ = 199746216. Its totient is φ = 66582070.

The previous prime is 133164133. The next prime is 133164167. The reversal of 133164142 is 241461331.

133164142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241461331 = 11093 ⋅21767.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33291034 + ... + 33291037.

It is an arithmetic number, because the mean of its divisors is an integer number (49936554).

Almost surely, 2^133164142 is an apocalyptic number.

133164142 is a deficient number, since it is larger than the sum of its proper divisors (66582074).

133164142 is an equidigital number, since it uses as much as digits as its factorization.

133164142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66582073.

The product of its digits is 1728, while the sum is 25.

The square root of 133164142 is about 11539.6768585606. The cubic root of 133164142 is about 510.6567752729.

The spelling of 133164142 in words is "one hundred thirty-three million, one hundred sixty-four thousand, one hundred forty-two".